4. Myth: Thirst is a good indicator that I need to drink.
Many people can use thirst as an indicator to rehydrate, but that may not always be reliable. As many of us know, thirst signals are easily ignored when it's inconvenient to drink, and we do this regularly, so it's tough to rely on thirst as a signal to drink.
In addition, physical activity, high temperatures, stress and fatigue may increase water loss making it necessary to consume more than you usually need
